OCULUS Mesotest II - Page 47

10 Conducting the Examination with a Computer/Laptop
Instruction Manual Mesotest II (G/62800/0715/en) 41 / 86
 Tell the patient to focus between the red fixation marks.
 Instruct the patient with the help of displayed Landolt ring.
Test mesopic vision
 Select test step 2.
 Present the optotype to the patient in 5 different positions,
sec. 10.1.3, page 30.
 Mark the results, sec. 10.1.2, page 30.
The visual requirement is deemed met when the patient has recognised at
least 3 of 5 positions of the Landolt ring (60% criterion).
 Conduct test steps 3 through 5 in the same way.
Test mesopic vision with glare
 Select test step 6.
 Tell the patient to focus on the red fixation mark. Explain to the
patient that he must keep looking in that direction and must not,
under any circumstances, look directly at the glare light during any
of the subsequent tests.
 Conduct test steps 7 through 10 in the same way as described above,
sec. , page 41.
The visual requirement is deemed met when the patient has recognised at
least 3 of 5 positions of the Landolt ring (60% criterion).